test.js

export function insertTable() {
  TXTextControl.tables.add(5, 5, 10, function (e) {
    if (e === true) { // if added
      TXTextControl.tables.getItem(function (table) {
        table.cells.forEach(function (cell) {

          cell.setText("Cell text");

        });
      }, null, 10);
    }
  })
};